n.[動]銀背大猩猩(指背部頸下方有銀白色毛的雄性成年大猩猩)
A young silverback mountain gorilla poses on the rim of a volcanic crater with a lake below in the background. 一只尚屬幼年的銀背大猩猩正站在火山口上，直視鏡頭，身后是一汪湖水。
